Watchmaker&#39;s tool.



R. CAPLAN.

WATGHMAKBRS TOOL.

APPLIUATION FILED JUNE 5. 1905.

902,939. Pateilted Nov. 3, 1908.

avwonloz M w, m

RUBIN OAPLAN, OF PITTSBURG, PENNSYLVANIA.

WATCHIWAKERS TOOL.

Specification of Letters Patent.

Patented Nov. 3, 1908.

Application filed June 5, 1908. Serial No. 436,894.

To all whom it may concern:

Be it known that I, RUBIN CAPLAN, a subject of the Emperor of Russia, residing at Pittsbur in the county of Allegheny and State of ennsylvania, have invented certain new and useful Improvements in Watchmakers' Tools, of which the following is a specification, reference being had therein to t e accompanying drawing.

This invention relates to a watch makers tool, and the primary object of my invention is to provide a tool for easily and quickly removing rollers from the spindles of balance wheels or similar horological wheels.

A further object of this invention is to provide a simple, inexpensive and durable tool that can be easily manipulated.

My invention comprehends a air of incers or pliers for grip ing the rol er of a alance wheel. Swivele upon the pincers or pliers is a support for an adjustable screw, which is broug t into engagement with the spindle of a balance wheel for forcing said spindle out of engagement with the roller held by the pincers or pliers.

The detai construction entering into my invention will be presently described and then specifically pointed out in the appended claim.

In the drawings, Figure 1 is a side elevation of an implement constructed in accordance with my invention, Fig. 2 is a top plan of the same, Fi 3 is a bottom plan of a portion of the tori Fig. 4 is an enlarged end view of the tool, partly broken away and artly in section, and Fig. 5 is an en arged ongitudinal sectional view of a portion of the too In the accompanying drawings 1 and 2 designate the handles which are curved or bowed outwardly and have their forward ends enlarged as at 3 and 4, terminating in the rip ing jaws 5 dis osed at an angle to the handles 1 and 2. he confrontin faces of the gripping jaws 5 are lon 'tu inally grooved, as at 6, and are provide with conronting transversely disposed grooves adapted to provide a central opening 7 when the jaws 5 are closed.

The confronting edges of the jaws are disposed at an angle, as at 8, when the jaws are closed, whereby when said jaws are opened and are placed in engagement with a roller 9 of a balance wheel 10, the confronting edges of said jaws will be parallel and will firmly hold the roller 9 while the spindle 11 of the balance wheel is forced from the roller.

The enlarged end 3 of the handle 1 is cut away upon its under side as at 12, to accommodate the enlarged end 4 of the handle 2, said enlarged end also being cut away to receive the enlarged end 3 of the handle 1, whereby the upper and lower faces of the enlarged ends Wlll lie flush with the upper and lower edges of the handles 1 and 2.

To connect the enlarged ends 3 and 4 I employ a rivet 13, which is revolubly mounted in the enlarged ends 3 and 4, as best shown in Fig. 5 of the drawings. Extending longitudinally of the rivet 13 is a revoluble screw 14, and fixed upon the threaded end 1.5 of said screw is a su port 16 having an adjustable screw 17. T e upper end of this screw is rovided with a head 18, while the lower en is reduced and provided with a socket 19 adapted to receive the spindle 11 of the balance wheel 10, as will presently appear.

In operation, the roller 9 is gripped between the jaws 5, said roller being centered in the jaws by virtue of the grooves 6 and the opening 7. With the roller held in this manner and the balance wheel 10 beneath the jaws, the su port 16 is swung until the screw 17 is direct y above the spindle 11. The screw 17 is then adjusted to screw downwardly to engage the spindle 11, the socket 19 receiving the reduced end of the spindle. A further downward movement of the screw 17 forces the spindle 11 from the roller 9, the balance wheel 10 dropping upon a suitable sup ort, as a workmans bench, (not shown), whie the roller 9 is retained between the gri ping 'aws 5.

t wil e observed that the screw 14 or the ivotal connection of the support 16 serves Functionally as a ivotal connection for the handles 1 and 2 w en the support 16 is held stationary.

The tool resembles an ordinary pair of pliers with the exception of the gripping aws and the support 16.

It is thought that the utility and operation of my tool will be fully understood, also that the elements of the invention can be var ed or changed without departing from the spirit of the invention.

Having now described my invention what their forward ends with enlarged portions, a said rivet and engaging said support for adrivet for pivotally connecting said enlarged justahly connecting the latter to the enlarged portions together, a grip ing aw carried by j portion of one of said handle members and a each enlarged portion of the handle rneml screw adjustably mounted in said support bers, the said grip ing jaws being provided and having a socketed lower end which alines with longitudinal y grooved confronting with the transverse recesses in said jaws faces and having transversely disposed rewhen the latter are closed.

cesses in said confronting faces, said grip- In testimony whereof I affix my signature ping jaws disposed at an angle with respect l n the presence of two witnesses.

to said enlarged portions, an inwardly ex- RUBIN CAPLAN.

tending support havin its forward portion Witnesses: overlymg and in para el relation with the MAX H. SRoLovrrz, grooved jaws, means extending through A. J. TRIGG. 

